General

  • Target

    22cc1db997c8b19d964010290bf86c90079c57ef93f10c12c0bc171b6f9afb5b

  • Size

    2.0MB

  • Sample

    240522-2lq6qabg58

  • MD5

    d5fa6572fb082b3ff0f1874a729e714a

  • SHA1

    1cb07a7333ab8800a3749e1a4bf6e8ae7e47ccc8

  • SHA256

    22cc1db997c8b19d964010290bf86c90079c57ef93f10c12c0bc171b6f9afb5b

  • SHA512

    79f25a70693b6c8923e69b4244f7095471855fed153910291392ed548860b6ca1f0a1ab1f2975dbb0667a2680d5026a5f7c46687b6168218fc704839c1b506b1

  • SSDEEP

    49152:7QzHt472DGJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt0tIuoITsdZ

Malware Config

Extracted

Family

stealc

rc4.plain

Targets

    • Target

      22cc1db997c8b19d964010290bf86c90079c57ef93f10c12c0bc171b6f9afb5b

    • Size

      2.0MB

    • MD5

      d5fa6572fb082b3ff0f1874a729e714a

    • SHA1

      1cb07a7333ab8800a3749e1a4bf6e8ae7e47ccc8

    • SHA256

      22cc1db997c8b19d964010290bf86c90079c57ef93f10c12c0bc171b6f9afb5b

    • SHA512

      79f25a70693b6c8923e69b4244f7095471855fed153910291392ed548860b6ca1f0a1ab1f2975dbb0667a2680d5026a5f7c46687b6168218fc704839c1b506b1

    • SSDEEP

      49152:7QzHt472DGJtTF+TxMoxc1TU+j+dAzGwlrh:7QzHt0tIuoITsdZ

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Executes dropped EXE

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks